/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.coyote;

import org.apache.tomcat.util.net.SocketStatus;

/**
 * Adapter. This represents the entry point in a coyote-based servlet container.
 *
 * @author Remy Maucherat
 * @see ProtocolHandler
 */
public interface Adapter {

	/**
	 * Call the service method, and notify all listeners
	 *
	 * @throws Exception if an error happens during handling of
	 *                   the request. Common errors are:
	 *                   <ul><li>IOException if an input/output error occurs and we are
	 *                   processing an included servlet (otherwise it is swallowed and
	 *                   handled by the top level error handler mechanism)
	 *                   <li>ServletException if a servlet throws an exception and
	 *                   we are processing an included servlet (otherwise it is swallowed
	 *                   and handled by the top level error handler mechanism)
	 *                   </ul>
	 *                   Tomcat should be able to handle and log any other exception ( including
	 *                   runtime exceptions )
	 */
	public void service(Request req, Response res)
			throws Exception;

	public boolean event(Request req, Response res, SocketStatus status)
			throws Exception;

	public boolean asyncDispatch(Request req, Response res, SocketStatus status)
			throws Exception;

	public void errorDispatch(Request request, Response response);

	public void log(Request req, Response res, long time);

	/**
	 * Assert that request and response have been recycled. If they have not
	 * then log a warning and force a recycle. This method is called as a safety
	 * check when a processor is being recycled and may be returned to a pool
	 * for reuse.
	 *
	 * @param req Request
	 * @param res Response
	 */
	public void checkRecycled(Request req, Response res);

	/**
	 * Provide the name of the domain to use to register MBeans for components
	 * associated with the connector.
	 *
	 * @return The MBean domain name
	 */
	public String getDomain();
}
